| Acronym | Meaning |
| MOPW | Modified Orthogonalized Plane Wave |
| MC-CEPA | Multiconfigurational CEPA |
| EDGAR | Emissions Database For Global Atm. Research |
| DIG | Diffuse Ionized Gas |
| OPG | Optical Parametric Generator |
| SCT | Stem Cell Transplantation |
| CARL | Colorado Association Of Research Libraries |
| VMD | Vector Meson Dominance |
| SLPM | Standard Liters Per Minute |
| THFA | Target Hartree-Fock Approximation |